Priming-cup



W. GRIKSCHEIT.

PRIMING CUP. APPLICATION FLED SEAT. I9, |919.

Pawntedsepn21,1920. A

P .si

WILLIAM GRIKSGHEIT, oiiunirfino'i: 'r,f, i/IIci-Iredale` i rRIMINe-cur.

Specification of Letters Patent. Patiented Sept, 21, 1920.

Application filed September 19, 1919. Serial No. 324,819.

'To all whom t may concern:

Be it known that I, WILLIAM GRIKsoHnIT, a citizen 0I" the .United States of America, residing at Detroit, in the county of 1Wayne and State of Michigan, have invented certain new and useful Improvements in Priming-Cups, vof which the following is a speciication, reference being had therein to the accompanying drawings.

The invention relates to priming cups ot' that type in which the discharge of fluid from the cup is controlled by a valve having a threaded stem. It is the object of the present invention to provide a dust Vcap for the cup, whichv when the valve is seated, will be securely held inF engagement with the cup, but which permits of access to the cup when the valve is unseated. To this end the invention consists in the construction as hereinafter set forth.

' In the drawings:

' Figure l is a longitudinal section through the cup showing the valve unseated and the cap removed;

` FigfQ is a section in a transverse plane showingthe valve seated and the cap in position. f

A is a priming cup having a shank por tion B terminating in a threaded nipple C. D is a valve for controlling the discharge from the cup, which as specifically shown is in the form of a hollow stem having a threaded portion E engaging a correspondingly threaded portion in the shank B; also the shoulder F for engaging the valve seat G and a lateral port I-I through the hollow stem below the shoulder F. Thus when the valve is seated, discharge of the liquid is prevented, but upon unseating the valve the liquid will obtain access to the port I-I and will be discharged through the hollow stem.

Various constructions of dust-caps have been used in connection with priming cups, but these are usually held in engagement by the use of springs. With the present con struction the cap is attached to the handleA for operating the valve and is so constructed that when the valve is unseated, the cap may be removed to uncover the cup, but when the valve is at its seat will be locked upon the cup. As shown, the operating handle I is secured to the valve stem D by a knuckle joint K, so it can becapable of angular movement, and L is a cap member mounted on the handle I and provided with a flange M which when the valve is seated, telescopically engages with the upper edge of the cup A, as shown in Fig. 2. In this position the cap is held from disengagement from i the cup and the handle is also held in .upright position. To remove the cap the handle I is turned in a direction to unseat the valve and as soon las it has been adjusted a sufficient distance for the flange M to clear the upper edge of the cup the handle may be turned upon the knuckle joint K into the position shown in Fig. l'. This will open access to the cup and will also open the valve so that the contents of the cup may be discharged.

To prevent complete detachment of either the cap or the valve stem, the latter is provided with a flange N at its inner end which engaging a shoulder 0 on the shank B will prevent further outward movement of the stem.

Vhat I claim as my invention is:

l. The combination with a cup and a valve v controlling the discharge from said cup having threaded engagement therewith, of a handle Vfor voperating said valve, and a cap Jfor said cup mounted on said handle andv adapted to be locked in engagement with the cup when the valve is seated.

2. The combination with a cup, of a valve controlling the discharge from saidcup haveV ing a threaded engagement therewith, a handle for operating said valve, a cap mounted on said handle, and a flange on said cup :tor telescopically engaging the upper edge oi said cup when the valve is seated, said flange clearing the cup when the valve is unseated to permit access thereto.v Y

' 3. The combination with a cup, of a valve controlling discharge from said cup having` a threaded stem in engagement therewith, a

handle for actuating said stem having av pivotal engagement therewith, and a cap mounted on said handle provided with a flange for telescopically engaging the upper edge of said cup when the valve is seated and clearing said edge to permit swinging of the handle and cap when the valve is removed from its seat.

4:. The combination with a cup having e hollow shank and a valve seat therein, of e valve having a, hollow threaded Shank engauging seid hollow' stein, e shoulder for engaging seid Valve seat, and alatera-l' aperture between seid shoulder and threaded por-- tion, a handle pivotelly secured to Seid Valve, to permit of lateral swinging, VndV oep mounted on seid handle telesoopioally engagging the upper edge of said. cup when the l0 Valve is seated and Clearing seid edge to swing laterally when the Valve ie removed from its seat. Y

In testimony whereof l affix my signature. 

